Google Maps Has Finally Added a Geodesic Distance Measuring Tool - Bloomberg
Map measuring tool called a curivmeter or opisometer. Wheel on a threaded spindle. Used for measuring distances on maps Stock Photo - Alamy
Maps Distance Calculator – Apps on Google Play
Map Measurer, Old Fashioned Mini Map Distance Measuring Gauge, Measures the Distance between 2 Points in Map, for Hiking, Camping, Traveling : Amazon.co.uk: Sports & Outdoors
Google Operating System: Measuring Distances in Google Maps
3 Simple Ways to Measure Distance on a Map - wikiHow
Measure distance and areas
My dad had this tool to measure roads on a map: set the needle on 0, roll the small wheel along the road you want to measure, look at the colored-scale that